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Epoxy/Steel Fiber Composites—A Simple Model to Predict the Fiber Sedimentation

机译:环氧/钢纤维复合材料—预测纤维沉降的简单模型

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摘要

Sedimentation of short steel fibers (SSFs) is an important phenomenon observed in the manufacture by casting of polymer/metal composites. Modeling of the fiber sedimentation has been a subject of research but hardly applied in the context of injection molds. In this study, the sedimentation velocity of the SSF suspension in nonreactive epoxy resin was evaluated theoretically and experimentally. The sedimentation behavior of single and concentrated SSF in epoxy resin was followed experimentally to obtain the terminal and sedimentation velocities. These data were interpreted using theoretical models that take into account the hindered settling factor and the shape factor. The experimental data can be correlated with the theoretical analyses. The findings were used to propose a simple model to predict the sedimentation of steel fibers in viscous resins that are used in composites for making molding blocks.
机译:短钢纤维(SSFs)的沉淀是在通过铸造聚合物/金属复合材料制造时观察到的重要现象。纤维沉降的建模一直是研究的主题,但几乎没有应用于注塑模具中。在这项研究中,从理论和实验上评估了SSF悬浮液在非反应性环氧树脂中的沉降速度。实验跟踪了单一和浓SSF在环氧树脂中的沉降行为,以求得最终速度和沉降速度。使用理论模型解释了这些数据,其中考虑了受阻沉降因子和形状因子。实验数据可以与理论分析相关联。这些发现被用来提出一个简单的模型,以预测钢纤维在粘性树脂中的沉降,粘性树脂用于复合材料中,用于制造成型块。

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